What can cause pests
Temperature, soil media structure/texture/porosity, moisture, lack of air circulation
What are signs of pest damage
Stunted growth, weak roots, holes in leaf
How are pests prevented
Sanitation, clean seed, exclusion, altering cultural practice, control temperature, moisture and air circulation
What is tolerance threshold
The level of pest or disease that becomes a significant setback/irreversible issue
What are 3 classes of treatment strategy
chemical, biological, physical
What is damping off?
Fungus due to excessive soil moisture, over-watering, poor draining media
How do you prevent whitefly
Monitor with yellow cards, have screening, quarantine new plants
How do you treat whitefly
Parasitic wasps, sprays like SIS (soap)
How do you treat aphids
Horticultural soap
What are 4 steps to control pests and disease in the greenhouse
Precautions, Media, Monitor and Spray/Drench
What causes rose black spot
fungi
How do you deal with canker in an apple tree
Cut it out
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General RHS Questions16
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Element 4 Seed sowing1
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Topic 2 Site Assessment4
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Topic 3 Plant Propagation4
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Topic 4 Pests13
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Topic 6 Pruning3
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Topic 4 Mulching and Fertiliser30
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Topic 7 - Garden features1
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Botanical & Scientific Nomenclature16
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Topic 5 Plant care8
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Topic 8 Grassed Surfaces20
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Topic 2 Sowing in drills9
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Health and Safety and Legislation5
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Plant Identification8
